Domain Overview
DNS: ✓ 8h ago
Checker: ✓ 8h ago
sungmun.co.kr
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-07-02 11:30:29 UTC · ↺ Refresh
MX Hostnames
- mail1.bizboxa.com
MX Priorities
- mail1.bizboxa.com: 10
A / AAAA Records
- 183.111.174.9 (no PTR)
Mail Server IPs
- 211.34.213.8 ↩ mail.bizboxa.com
SOA Record
Raw SOA
sungmun.co.kr postmaster.sungmun.co.kr 20170131 10800 3600 3600000 43200
Primary NS (mname)
sungmun.co.kr
Admin Email (rname)
postmaster@sungmun.co.kr
Serial
20170131
Refresh
10800s
Retry
3600s
Expire
3600000s
Minimum TTL
43200s
Nameservers (NS)
ns2.cafe24.com
ns2.cafe24.co.kr
ns1.cafe24.com
ns1.cafe24.co.kr
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:183.111.174.9 include:_spfblocka.bizboxa.com include:_spf.salesforce.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- sending_domain1090032=809f1363cf45da5c76bfdc13f14fd534f65d58f05e56e7e2ee33b58512ef5ddb
- SPFv=spf1 ip4:183.111.174.9 include:_spfblocka.bizboxa.com include:_spf.salesforce.com ~all
- SPFv=spf1 ip4:183.111.174.9 include:_spfblocka.bizboxa.com include:_spf.salesforce.com ~all
- sending_domain1090032=809f1363cf45da5c76bfdc13f14fd534f65d58f05e56e7e2ee33b58512ef5ddb
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